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(o Model.) 2 Sheets-Sheet 1. J. FLBISCHER, H. W. MLLER, 8a J. G.-ARNOLD.

GAS REGULATOR;

No. 804,762. Patented Aug. 18, 1885. T

QQ m C: Q tl I 1mm-fw 77:5/ e. M Ml www (No Mael.) 2 sheets-sheet 2. J.PLEISCHER, H. W. MLLER, 8a J. Gr. ARNOLD.

' GAS REGULATOR. Y

No. 324,762. Patented Aug. 18. 1835.

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NV PETERS. PhukrLihngnphnr. WAshngion, D, C.

wUNITEDv STATES PATENT AOEETCE..

` l JOHANNES FLEISGHER, HlERONYMUS WILHELM MLLER, AND JOHANN GEORGARNOLD, OF FRANKFORT-ON-THE-MAIN, GERMANY.

GAS-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 324,762, dated August184., 1885.

Application filed April 16, 1885. (No model.) Patented in Germany June19, 1884, No. 30,176, and in France August 7, 1884, N0. 163,672.

`Main, have invented new and useful Improvements in Gas-Regulators, ofwhich the following is a specification.

The gas-pressure regulator shown in Figures 1 to 7 of the accompanyingdrawingsl has for its object to reduce the supply of gas to thatpressure which is necessary for its economical consumption.

The regulator may be used for the largest or the smallest consumption,and it is immaterial whether it is used with ahydraulic sealthat is tosay, with a bell dipping into a sealing-liquid to prevent the passage ofgas, as shown in Fig. 2-or in smaller sizes with a double diaphragm,Figs. 1 and 7. l

The regulator consists, essentially, in the reservoir B, Figs. 1 and 2,the double diaphragm or theimmersed bell A, Figs. 1 and 2, which mayboth be loaded with weights H and loosely connected with the guide-rod Gof the valves' O and C', in the lower part of which are provided twoguide-rollers, E E', of different size, and united by a common spindle,F, Figs. 5 and 6. At the lowermost end of the guide-rod an adjustableconical valve, D, "is screwed on and fixed in position by a locknut, L.

ln the bottom of the reservoir B, Figs. 1, 2, and 7, a flanged piece, N,is screwed fast, which at the inlet is of exactly the same diameter asthe pipe by which the apparatus is to be connected with the gas-supplyand then divides into three exits.

At the two lateral eXits,.to the right and left, valves C and C aremounted on hinges, so as to be free to turn. Thelever-arms 1 and 2, Fig.6, on said valves take under the guiderollers E E', provided for thesame in the rod G, these rollers being of unequal diameters. The conicalvalve D, with its lock-nut L, fixed on the rod G, completes the wholemechanism and at the sametime serves as a guide. The bridge J, providedon the reservoir, Fig. 1, serves as the upper guide `for the rod G,while in the arrangement illustrated in Fig. 2 a

bridge-piece on the ou tside serves for the same I purpose.

The operation of the apparatus is :as follows: The gas enters at thebottom of thereservoir B by the flanged connection or coupling, or itpasses into the bell A, as indicated by arrows in Figs. 1, 2, 3, 4, and7, until these and the pipes connected therewith are filled with gas. Bythe continued pressure against the diaphragmsor the bell A these rise totheir highest point and consequently the three valves connectedtherewith are completely closed, Fig. 1. It must be observed that thetwo hinged valves, C and C', will, by reason of the position of thelevers 1 and 2, shown in Fig. 6, close auto- -matically,"andconsequently may be substituted for the floating bell A. The thirdconical valve, D, isqopened and closed by the pull of the membranes orthe bell-viz., through the gas pressure-and on the other hand by thcpressure of the hinged valves C C by means of their lever-arms 1 and 2upon the vertical guide-rod G. The bell or the membranes will rise inaccordance with the pressure at which the gas is to be allowed to passoff, this being regulated by loading the membranes or the bell, say,ywith disks of lead H.

' Now,*for the purpose of always maintaining a uniform pressure at theplace where the gas is to be consumed, the valves work alternately.First, by the sinking of the membranes or the bell the conical valve Dscrewed upon rod G acts. (See Fig. 3.) The consumption of gas beingcontinued, and the membranes or the bell sinking farther, the largerguideroller, E', on the rod G presses upon the lever 2 of valve C', andopens the same until the position shown in Fig. 4 is reached. At thisposition, and with a further increase or consumption of gas, themembrane or bell deA scends still farther, and the smaller roller, E,presses against the other lever-arm of the valve G, and the third valveis now opened. In a further increasein consumption the three valves workin conjunction until their opening is equivalent to the full Opening` ofthe supply, Fig. 2, should the entire available supply be required.

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Should the consumption be reduced .and

the pressure beneath the membrane become proportionately increased, thevalves are gradually closed in a sequence which is inversely thatpreviously described, so that the conical valve is the last to beclosed, and consequentl y an exceedingly sensitivejregulation iseffected.

After what has been stated it need only be shortly pointed out thatwhile all low-pressure gas-regulators heretofore known, Whether 1 a: 77u 77 wet or dry, work with a single valve only, either conical or ofother shape, in this system three valves are used, rst successi-vely,and at last, when full consumption takes place, simultaneously, so thatextreme sensi tiveness of regulation is attained, which has beenspecially attainable only by reason of the slight rise of the membraneor bell required in the present construction, while the floatsheretofore absolutely required in wet regulators can be dispensed with,and the action is independent of the level at which thewater stands,while in the present dry regulator the membrane is subjected to muchless Strain than heretofore,as'it will not, as, for instance, in somecases, be pulled down by a conical valve aty the center when thepressurevis-excessive, thus s oon causing leakage. On the contrary, inour system there is a constant tendency, when the weight at H isreduced, to raise the membrane, and this considerably tends to itspreservation.

The form of apparatus shown in section in Fig. 7 consists, essentially,in two su-perposed regulators, l and 2, containing the valvesconstructed, as shown in Figs. 1, 2, 3, 4, 5, and 6, H, which may beplaced vone above another or side by side, and having elastic sides Kand L, and these will effectively equalize all u-neven burning of the`llames which might be caused by Vif brations in the supply-pipes.

The two regulators l and 2 are connected by the pipe F, the connectionfor the reservoir or reservoirs H being established by the pipe G. Thepath in which the gas travels is indicated by arrows. The Walls m and nprotect the double membranes K and L against all willful or accidentaldamage. These membranes work precisely as has been hereinbeforedescribed.

The safety-tube-O is connected wit-l1 the at mospheric airat pipe O',and prevents vall escape of gas into the locality, as it correspondswith little channels R in the walls m n,.which, when any leakage occurs,allow the gas forthwith to escape'into the open air by the tube O, sothat explosion or conilagration is prevented.

For loading, a spring-regulator ris employed vwith the lower beam,`A2. DAfixed on the latter-r has at -vice has an adjustment at E,:and itallows both the regulators land 2 to be set by means of the levers orbeams A A', as follows: The upper beam, A@ is connected. by theadjustable coupling C, having balance-weights A, The .spiral `springitsextended lower end a screwed part passing through stuffingbox P,which has a cap for closing it. By turning the thumb-nut E, fitted overthe screwthread, any pressure from one millimeter water can be obtainedfor the regulators. The spaces above, the diaphragms and outside themembranes communicatewith the safety-tube O, so as to supply the airlrequired for move- -ment of the regulators l 2 from outside and to allowit to escape the same Way. The path l of theair is indicated'A by barbedarrows.

Having now particularly described and ascertained the nature of our saidinvention, and in wha-t manner the same is to be performed, we declarethat what we claim igs l. In a gas-regulator, the combination, with thebreeches-pipe N, of the rod G, carrying at its lower end the valve D'andoperating the valves C C, which close the main exits of the pipe N,substantially yas and for the purpose specified.

2. In a gas-regulator, fitted With valves C C', adapted to be opera-tedbythe weighted rod G, substantially in the manner and for the purposespecified.

3. In agas-regulator, the-combination, with the breaches-pipe N, of thevalve D, secured upon the rod Gin such manner that said valve D opensbefore lthe valves C or G, substantially as and for the purposespeciied.

4. In a gas-regulator, the combination, with the breechespipe N, ofvalves C C', adapted to be successively operated by rod G, substantiallyin the specified.

5. In agas-regulator, the combination, with the weighted rod G, ofrollers E E, of ydifferent diameters, for the purpose of opera-tingsuccessively the yvalves G C', substantially as specified. i

6. A compound gaspressure regulator -ha-ving two su perposedregulating-chambers, each provided with vertically-operating'valvesand a-breeches-pipe, N,

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manne-r and for the purpose j IIO valve rods, weighted or springimpelledlel vers connected to each rod, a-nd Van adjustable rod connecting t-heouter or free ends of suchlevers, as set forth. v

JOHANNES FLEISCIIER.A HIERONYMUS WILHELM MLLER. JOI-[ANN GEORG ARNOLD.Witnesses:

ROBT. M. Hoornn, ADoLPHn BOETTOHER.

